Rolling mill with inclined rolls



May 12, 1936. F. KOCKS 2,040,612

ROLLING MILL WITH INCLINED ROLLS Filed Aug. 5, 1953 Flhl [/1 we [an Patented May 12, 1936 PATENT. OFFICE Fritz Kooks, Dusseldorf, Germany Germany February 2, 1933 fipplicatilililn August 5, 1933, Serial No. 683,871

(mac-1s) Hitherto the efilciency of rolling mills with cross rolls was impaired by the fact that the turning moment to be transmitted -onto the 15 rolls was limited by the diameter of the coupling pins of the rolls or'the pinions or of the coupling spindles connecting the rolls to the pinions.

- In order to increase the turning moment transmittable to the rolls, I form the cross rolls with no coupling pins on both sides and I provide means whereby driving power is fed to the rolls both from the side where the blank enters and from the side where it Eeaves the rolls.

advantageous if applied to rolling mills equipped withmore'than two cooperating cross rolls whose diameters and coupling pins are relatively small.

In the preferred form of my invention I provide two separate housings, one at either end of I 3 the mill and a separate pinion for each roll mounted in each housin both ends .of these pinionsbeing supported in suitable bearings formed in or secured to the housings, and I further provide a separate driving means, such .as

' an electromotor, a steam engine or the like, for

the pinions mounted in each-housing so that the rolls are positively driven from their front and from their rear ends, the two driving means being not mechanically connected with each other. 40' In the drawing afllxed to this specification and forming part thereof a rolling mill with inclined rolls embodying my invention is illustrated'diagrammatically by way of example.

In the drawing:

- -Fi'g. l is side elevation and Fig. 2 a plan viewof the mill, while Fig. 3 is an end viewof one of the housings accommodating the pinions.

' This arrangement has proved to be particularly Referring to the drawing, I and 2 are the cross rolls mounted in a housing 3, each roll being formed with two coupling pins 4, 5, one at either end. 6, i are coupling spindles and I, l are oou-.

pling boxes connecting these spindles with the -5 coupling pins of the rolls on the one side and with the axles 9 of thepinions III on the other side. These axles and thepinions, of which they form part, are supported in bearings provided in the housings II and i2, oneof which is shown in end 10 view in Fig. 3'. Between the pinions mounted in each housing is located a driving wheel I) which is coupled with and driven by a separate motor H. The blank (not'shown) enters between'the rolls from the left, leaving the rolls on the right hand side of the figures, after having passed over a mandrel indicated at I5.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described for obvious modifications will occur to a person skilled in the art.

I claim:-

1. In a mill for rolling tubular blanks, a plurality of cross-rolls, "means for supporting and means for driving said rolls arranged at both ends thereof, shafts connected with said rolls, gears mounted on said shafts at both ends thereof and gears mounted on said driving means adapted to mesh with and to drive said first gears.

2. In a mill for rolling tubular blanks, a plurality of conical cross-rolls, means for supporting and means for driving said rolls arranged at both ends thereof, shafts connected with said rolls, gears mounted on said shafts at both ends thereof, and driving gears mounted on said driv- 85 ing ,means intermediate said first gears and adapted to drive said first gears.

3. In a mill for rolling tubular blanks, a plurality of conical cross-rolls mounted on shafts, gears mounted on each end of each shaft, independent driving means arranged at both ends of said cross-rolls, said driving means comprising drivi'ng gears mounted intermediate said first mentioned gears and adapted to drive the same, said driving means being adapted to transmit equal amounts of power to each end of each roll. 

